Book Four: Real Securities · Section Two: Possessory Pledge · Chapter One: Definition and Creation of a Possessory Pledge
If an undivided share in an immovable property or the like is pledged, the pledgee shall take possession of the whole if the remainder is owned by the pledgor. If it is owned by another, taking possession of the pledged share shall suffice.
Interpretation and application must be checked against the official text and current version.